.content{
  display: flex;
  position: fixed;
  top: 100rpx;
  bottom: 0;
  left: 0;
  right: 0;
  .left{
    width: 200rpx;
    height: 100%;
    // 固定伸缩弹性布局的宽度，不会被挤压
    flex-shrink: 0;
    overflow: auto;
    background-color: #eee;
    .menu-item{
      height: 102rpx;
      line-height: 102rpx;
      text-align: center;
      position: relative;
    }
    .active{
      background-color: #fff;
      color: red;
      &::before{
        content: '';
        display: block;
        width: 4px;
        height: 60rpx;
        background-color: red;
        position: absolute;
        top:21rpx;
        left: 0;
      }
    }
  }

  .right{
    flex: 1;
    height: 100%;
    overflow: auto;
    .brand-item{
      .brand-title{
        text-align: center;
        line-height: 2;
      }
      .brand-list{
        display: flex;
        flex-wrap: wrap;
        .brand{
          width: 33.33%;
          padding: 20rpx;
          box-sizing: border-box;
          img{
            width: 100%;
            height: 100rpx; 
          }
          p{
            line-height: 1.5;
            font-size: 14px;
            text-align: center;
          }
        }
      }
    }
  }
}